It is said to await certainty is to await eternity.
I pictured myself as a virus or a cancer cell and tried to sense what it would be like.
My ambition was to bring to bear on medicine a chemical approach. I did that by chemical manipulation of viruses and chemical ways of thinking in biomedical research.
Your dreams tell you what to do; your reason tells you how to do it.
It is courage based on confidence, not daring, and it is confidence based on experience.
Life is an error-making and an error-correctin g process, and nature in marking man's papers will grade him for wisdom as measured both by survival and by the quality of life of those who survive.